Mouse Problems when running vb6 program

I have a vb6 program I wrote, which is part of my home automation system. The problem I'm having is my mouse does not work properly when running the program. The mouse works normally when not running the program. The program is communicating with an alarm panel through the IP network so there is a lot of traffic on the network. A example of the problem is if I want to scroll through a database and I click on the down arrow, I may have to click several times before the program recognizes the click. Then, the mouse goes into runaway and scrolls down to the bottom of the file as though I was holding down the left button. Needless to say, this will drive you crazy and I have to get this resolved. Any help would be greatly appreciated.